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Finding the Fourth Proportional to 101,661.41, 152,433.12 and 38,486.41

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Solution

The fourth proportional to 101,661.41, 152,433.12 and 38,486.41 is: 57,707.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,661.41 : 152,433.12 = 38,486.41 : x
  2. Step 2: Convert to fraction form
    101,661.41/152,433.12 = 38,486.41/x
  3. Step 3: Cross multiply
    101,661.41x = 152,433.12 × 38,486.41
  4. Step 4: Simplify right side
    101,661.41x = 5,866,603,553.90
  5. Step 5: Solve for x
    x = 5,866,603,553.90/101,661.41
  6. Step 6: Final answer
    x = 57,707.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.